Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Susumu Zeniya0
Shigeki Otagaki0
Date of Patent
November 17, 2009
Patent Application Number
11586566
Date Filed
October 26, 2006
Patent Primary Examiner
Patent abstract
An electric power steering device that can estimate an ambient temperature and apply current limiting without using ambient temperature detecting means is provided. The electric power steering device includes a motor that supplements the driver's steering force, a controller that determines and controls the quantity of current passed to the motor, and vehicle speed detecting means. The electric power steering device includes ambient temperature estimating means provided with a vehicle speed signal input from the vehicle speed detecting means and limits the quantity of current passed to the motor according to an output from the ambient temperature estimating means.
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